December weather forecast
Windsor, ME

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Weather in December

December, the first month of the winter in Windsor, is still a cold month, with temperature in the range of an average high of 32.5°F (0.3°C) and an average low of 21.4°F (-5.9°C).

Temperature

With December's arrival, Windsor sees a decrease in average high-temperatures, moving from a chilly 43.7°F (6.5°C) in November to a cold 32.5°F (0.3°C). In the month of December, Windsor's average low-temperature falls to a subzero cold 21.4°F (-5.9°C).

Humidity

In December, the average relative humidity in Windsor, Maine, is 81%.

Rainfall

The month with the most rainfall is December, when the rain falls for 9.5 days and typically aggregates up to 3.35" (85mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In December, it is snowing for 8.8 days. Throughout December, 5.35" (136mm) of snow is accumulated. Throughout the year, there are 50.1 snowfall days, and 32.87" (835mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 8h and 54min of daylight.
On the first day of December, sunrise is at 6:54 am and sunset at 4:00 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 4:09 pm EST.

Sunshine

In December, the average sunshine in Windsor is 4.5h.

UV index

The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: In December, the maximum UV index of 2 suggests this advice:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.

Frequently asked questions

How cold is December in Windsor?

In Windsor, 32.5°F (0.3°C) is the average high-temperature and 21.4°F (-5.9°C) is the average low-temperature during December.

What is the average humidity in December?

The average relative humidity in December is 81%.

What is the wettest month in Windsor?

December is the month with the most rainfall. Rain falls for 9.5 days and accumulates 3.35" (85mm) of precipitation.

How much does it rain in December?

In Windsor, during December, the rain falls for 9.5 days and regularly aggregates up to 3.35" (85mm) of precipitation.

How much does it snow in December?

In Windsor, during December, snow falls for 8.8 days and regularly aggregates up to 5.35" (136mm) of snow.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 8h and 54min of daylight.

How many hours of daylight does Windsor have in December?

The average day length in December is 8h and 55min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 6:54 am and sunset at 4:00 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 4:09 pm EST.

How many hours of sunshine does Windsor have in December?

In December, the average sunshine duration is 4.5h.

What are the months with the lowest UV index?

January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index.

How high is the UV index in December?

The average daily maximum UV index in December in Windsor is 2. A UV Index of 2, and less, symbolizes a low health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Windsor, ME

Average temperature in December - Windsor, ME
  • Average high temperature in December: 32.5°F

The warmest month (with the highest average high temperature) is July (76.1°F).
The month with the lowest average high temperature is January (27°F).

  • Average low temperature in December: 21.4°F

The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is January (12.9°F).

Average pressure in December
Windsor, ME

Average pressure in December - Windsor, ME
  • Average pressure in December: 30.01"Hg

The months with the highest atmospheric pressure are September and November (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in December
Windsor, ME

Average wind speed in December - Windsor, ME
  • Average wind speed in December: 8mph

The windiest month (with the highest average wind speed) is March (8.7mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

Average humidity in December
Windsor, ME

Average humidity in December - Windsor, ME
  • Average humidity in December: 81%

The months with the highest relative humidity are January, February and March (84%).
The months with the lowest relative humidity are April and November (78%).

Average rainfall in December
Windsor, ME

Average rainfall in December - Windsor, ME
  • Average rainfall in December: 3.35"

The wettest month (with the highest rainfall) is December (3.35").
The driest month (with the least rainfall) is September (1.61").

Average rainfall days in December
Windsor, ME

Average rainfall days in December - Windsor, ME
  • Average rainfall days in December: 9.5 days

The month with the highest number of rainy days is June (16.1 days).
The month with the least rainy days is February (6 days).

Average snowfall in December
Windsor, ME

Average snowfall in December - Windsor, ME
  • Average snowfall in December: 5.35"

The month with the highest snowfall is January (7.8").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Windsor, ME

Average snowfall days in December - Windsor, ME
  • Average snowfall days in December: 8.8 days

The month with the highest number of snowfall days is January (11.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Windsor, ME

Average daylight in December / Average sunshine in December - Windsor, ME
  • Average daylight in December: 8h and 5min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in December: 4h and 3min

The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).

Average sunshine days in December
Windsor, ME

Average sunshine days in December - Windsor, ME
  • Average sunshine days in December: 15.3 days

The months with the most sunshine days are September and November (16.8 days).
The month with the least sunshine days is April (11.3 days).

Average UV index in December
Windsor, ME

Average UV index in December - Windsor, ME
  • Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

Average cloud cover in December
Windsor, ME

Average cloud cover in December - Windsor, ME
  • Average cloud cover in December: 52

The months with the most cloud cover are February, March and April (Cloud cover 54).
The month with the least cloud cover is September (Cloud cover 39).

Average visibility in December
Windsor, ME

Average visibility in December - Windsor, ME
  • Average visibility in December: 6mi

The months with the highest visibility are November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September and October (5mi).

Windsor, Maine, USA

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